Function jit_insn_return_ptr 

pub unsafe extern "C" fn jit_insn_return_ptr(
    func: jit_function_t,
    value: jit_value_t,
    type_: jit_type_t,
) -> c_int

Output an instruction to return *value as the function’s result. This is normally used for returning struct and union values where you have the effective address of the structure, rather than the structure’s contents, in value.